Proceeds from sale of stock, net of related fees.

No definition available.

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- Definition

Shares reclassified as authorized and unissued.

+ References

No definition available.

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- Details

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

+ Details

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

+ Details

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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28,29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares that have been repurchased and retired during the period.

+ References

+ Details

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Period Type:	duration

- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

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Shareholders' Equity (Narrative) (Details) (USD $)	12 Months Ended										0 Months Ended	12 Months Ended					0 Months Ended		1 Months Ended
Shareholders' Equity (Narrative) (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2013 Class A Common Stock [Member]	Dec. 31, 2012 Class A Common Stock [Member]	Mar. 07, 2012 Class A Common Stock [Member]	Dec. 31, 2007 Class A Common Stock [Member]	Dec. 31, 2013 1.875% Convertible Senior Notes [Member]	Apr. 18, 2013 1.875% Convertible Senior Notes [Member]	May 16, 2008 1.875% Convertible Senior Notes [Member]	Dec. 31, 2013 4.0% Convertible Senior Notes [Member]	Apr. 29, 2009 4.0% Convertible Senior Notes [Member]	Apr. 27, 2011 Current Stock Repurchase Program [Member] Class A Common Stock [Member]	Dec. 31, 2013 Current Stock Repurchase Program [Member] Class A Common Stock [Member]	Dec. 31, 2011 Stock Repurchase Program [Member]	Dec. 31, 2011 Previous Stock Repurchase Program [Member]	Dec. 31, 2013 2010 Plan [Member] Class A Common Stock [Member]	May 20, 2010 2010 Plan [Member] Class A Common Stock [Member]	Apr. 02, 2012 Mobilitie [Member]	Apr. 02, 2012 Mobilitie [Member] Class A Common Stock [Member]	Oct. 31, 2012 TowerCo [Member]	Oct. 31, 2012 TowerCo [Member] Class A Common Stock [Member]
Class of Stock [Line Items]
Debt instrument stated percentage						1.875%	1.875%	1.875%	4.00%	4.00%
Stock repurchase program, authorized											$ 300,000,000	$ 300,000,000
Stock repurchased and retired, shares													5,917,940
Stock repurchased and retired, value	225,072,000												225,100,000	75,100,000
Stock repurchase program, remaining authorization												150,000,000
Maximum issuance of shares															15,000,000	15,000,000
Shares remaining available for future issuance under the plan															12,500,000
Shares, issued					4,000,000
Shares reclassified as authorized and unissued		1,700,000
Common stock, shares issued		128,432,000	126,933,000	6,005,000
Common stock value per share				$ 47.30
Proceeds from sale of stock, net of related fees				283,900,000
Total consideration paid in cash																	$ 850,000,000		$ 1,200,000,000
Newly issued shares																		5,250,000		4,588,840